https://bugs.kde.org/show_bug.cgi?id=384337

--- Comment #13 from Ivo Raisr <iv...@ivosh.net> ---
Interestingly enough, VEX register allocator v2 also benefits from register
reordering:

For Memcheck on perf/bz2:
ra2-baseline: 45,214 M instructions total; 209 M doRegisterAllocation_v2
ra2-reordered: 45,189 M instructions total; 205 M doRegisterAllocation_v2
ra3-baseline: 45,132 M instructions total; 160 M doRegisterAllocation_v3
ra3-reorder: 45,116 M instructions total; 159 M doRegisterAllocation_v3


For Memcheck on perf/ffbench:
ra2-baseline: 15,646 M instructions total; 100 M regalloc
ra2-reorder: 15,615 M instructions total; 99 M regalloc
ra3-baseline: 15,749 M instructions total; 79 M regalloc
ra3-reorder: 15,692 M instructions total; 78 M regalloc

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